Malicious PDF — malware analysis report

Static analysis result for SHA-256 346fe33763ba9ad8…

MALICIOUS

PDF

35.5 KB Created: 2021-07-05 22:23:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1c9a7fb87ef07c8985fe37e1fac569cf SHA-1: 28dea9aa1597e00c2f19306ce70865664496f802 SHA-256: 346fe33763ba9ad88e456373b64dda528904265e12009f3379674e8eec2858b4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically a site promising free game currency or hacks. The primary link identified is http://netcdn.tw/app/431946152/how-to-get-free-robux-generator-game-hack. The document's content and embedded links strongly suggest a social engineering lure to drive traffic to potentially harmful websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/how-to-get-free-robux-generator-game-hack In PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-hoodie-roblox_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-to-get-robux-legit-for-free-20217_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/bear-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/roblox-superhero-city-money-hack_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D8 23112 bytes
SHA-256: 59aa04b8e086324fc42945f08de7305d46453b09a43aff35ec855264065574bb
font_01_sfnt_off000065df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DF 18984 bytes
SHA-256: 9ace3a26ef8593b997a2527bb5fc552eafd0119b2772e901bbb9c059dfbe5502

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